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Full-Text Articles in Engineering
Viscoelastic Study Of Conducting Polymers Using Quartz Crystal Microbalance, Mehrdad Bahrami Samani, Philip G. Whitten, Geoffrey M. Spinks, Christopher David Cook
Viscoelastic Study Of Conducting Polymers Using Quartz Crystal Microbalance, Mehrdad Bahrami Samani, Philip G. Whitten, Geoffrey M. Spinks, Christopher David Cook
Faculty of Engineering - Papers (Archive)
Application of conducting polymers has been growing widely in different fields such as batteries, solar cells, capacitors and actuators. Mechanical properties of conducting polymers like flexibility, high power to mass ratio and high active strain make them potentially applicable to robotic and automation industries. Obviously, a dynamic model of the actuation phenomenon in conducting polymers is needed to study its controllability and also to optimize the mechanical performance. De Rossi and colleagues suggest treating the mechanical behaviour of conducting polymers separately from the viscoelastic structural model and electrochemical actuation[1]. But it has been observed that the effects of electrochemical actuation …
Thermomechanical Behavior Of Nickel Base Single Crystal Superalloy Towards Understanding Of Weld Hot Cracking, S S. Babu, J M. Vitek, S A. David, M Murugananth
Thermomechanical Behavior Of Nickel Base Single Crystal Superalloy Towards Understanding Of Weld Hot Cracking, S S. Babu, J M. Vitek, S A. David, M Murugananth
Faculty of Engineering - Papers (Archive)
"Thermomechanical responses of three single crystal superalloys were measured in between 600 and 1200 degrees C using a thermomechanical simulator. On-heating results showed no softening while testing below 1000 degrees C. In contrast, extensive softening was observed while testing above 1000 degrees C. This rapid softening is related to dissolution of gamma' precipitates. During on-cooling tests from 1300 degrees C, strength recovery of these samples occurred only below 900 degrees C. The delay in strength recovery is attributed to the extent of undercooling required for rapid decomposition of the gamma phase into mixture of gamma and gamma' phases."
Predication Of Multi-Dimensional Photonic Crystal Structures Generated By Multi-Beam Interference In Holographic Lithography, Jose F. Chicharo, Jiangtao Xi, Enbang Li
Predication Of Multi-Dimensional Photonic Crystal Structures Generated By Multi-Beam Interference In Holographic Lithography, Jose F. Chicharo, Jiangtao Xi, Enbang Li
Faculty of Engineering - Papers (Archive)
Photonic crystals (PCs) are synthetic micro-structures which have periodical refraction index variations and produce photonic band gaps similar to electronic band gaps produced by the crystal potentials of semiconductors. Different methods have been proposed and demonstrated to fabricate two- or three-dimensional photonic crystal structures. Among them, the holographic lithography method, in which multi-beam interference is employed, offers a number of advantages, including its ability to create large volume of periodic structures through an irradiation process, the uniformity of period, and more degrees of freedom to control the structures. In this study, a multi-beam interference model is presented for predicting the …